periodic table notes
Periodic Table- chart of elements organized to show similar physical or chemical properties of elements
Periodic Table organized into:
-17 rows
-called PERIODS
-Each period represents the number of occupied energy levels in each element in the row
--18 columns
-Called GROUPS or FAMILIES
-share similar chemical and physical properties
-have the same amount of valence electrons
Properties of metals:
-metals are good conductors of heat and electricity
-metals are shiny
-are ductile(can be stretched into thin wires)
-are malleable (can be pounded into thin sheets)
-a chemical property of metal is its reaction with water which results in corrosion
Properties on non-metals:
-non-metals are poor conductors of heat and electricity
-not ductile or malleable
-solid non metals are brittle and break easy
-dull
-many are gasses
Properties of metalloids:
-have properties of both metals and non metals
-can be shiny or dull
-can conduct heat and electricity but not as well as metals
-are ductile and malleable
Periodic Table organized into:
-17 rows
-called PERIODS
-Each period represents the number of occupied energy levels in each element in the row
--18 columns
-Called GROUPS or FAMILIES
-share similar chemical and physical properties
-have the same amount of valence electrons
Properties of metals:
-metals are good conductors of heat and electricity
-metals are shiny
-are ductile(can be stretched into thin wires)
-are malleable (can be pounded into thin sheets)
-a chemical property of metal is its reaction with water which results in corrosion
Properties on non-metals:
-non-metals are poor conductors of heat and electricity
-not ductile or malleable
-solid non metals are brittle and break easy
-dull
-many are gasses
Properties of metalloids:
-have properties of both metals and non metals
-can be shiny or dull
-can conduct heat and electricity but not as well as metals
-are ductile and malleable
Group 1- Alkali Metals: Will lose only electron in outer shell to become stable, the most reactive metals
Group 2- Alkali Earth Metals: Will lose two electrons in outer shell to become stable, not as reactive
Group 17- Halogens: Will gain one electron to become stable, most reactive non metals
Group 18- Noble G